1 /* libs/graphics/animator/SkAnimateActive.cpp 2 ** 3 ** Copyright 2006, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #include "SkAnimateActive.h" 19 #include "SkAnimateBase.h" 20 #include "SkAnimateMaker.h" 21 #include "SkAnimateSet.h" 22 #include "SkDrawGroup.h" 23 #ifdef SK_DEBUG 24 #include "SkTime.h" 25 #endif 26 27 // SkActive holds array of interpolators 28 29 SkActive::SkActive(SkApply& apply, SkAnimateMaker& maker) : fApply(apply), 30 fMaxTime(0), fMaker(maker), fDrawIndex(0), fDrawMax(0) { 31 } 32 33 void SkActive::init() 34 { 35 fAnimators = fApply.fAnimators; 36 int animators = fAnimators.count(); 37 fInterpolators.setCount(animators); 38 memset(fInterpolators.begin(), 0, animators * sizeof(SkOperandInterpolator*)); 39 fState.setCount(animators); 40 int index; 41 for (index = 0; index < animators; index++) 42 fInterpolators[index] = SkNEW(SkOperandInterpolator); 43 initState(&fApply, 0); 44 // for (index = 0; index < animators; index++) 45 // fState[index].bumpSave(); 46 SkASSERT(fInterpolators.count() == fAnimators.count()); 47 } 48 49 SkActive::~SkActive() { 50 int index; 51 for (index = 0; index < fSaveRestore.count(); index++) 52 delete[] fSaveRestore[index]; 53 for (index = 0; index < fSaveInterpolators.count(); index++) 54 delete[] fSaveInterpolators[index]; 55 for (index = 0; index < fInterpolators.count(); index++) 56 delete fInterpolators[index]; 57 } 58 59 void SkActive::advance() { 60 if (fDrawMax < fDrawIndex) 61 fDrawMax = fDrawIndex; 62 fDrawIndex += fAnimators.count(); 63 } 64 65 void SkActive::append(SkApply* apply) { 66 int oldCount = fAnimators.count(); 67 SkTDAnimateArray& animates = apply->fAnimators; 68 int newCount = animates.count(); 69 int index; 70 int total = oldCount + newCount; 71 if (total == 0) 72 return; 73 fInterpolators.setCount(total); 74 memset(&fInterpolators.begin()[oldCount], 0, newCount * sizeof(SkOperandInterpolator*)); 75 for (index = oldCount; index < total; index++) 76 fInterpolators[index] = SkNEW(SkOperandInterpolator); 77 fAnimators.setCount(total); 78 memcpy(&fAnimators[oldCount], animates.begin(), sizeof(fAnimators[0]) * 79 newCount); 80 fState.setCount(total); 81 initState(apply, oldCount); 82 SkASSERT(fApply.scope == apply->scope); 83 for (index = 0; index < newCount; index++) { 84 SkAnimateBase* test = animates[index]; 85 // SkASSERT(fApply.scope == test->fTarget || fApply.scope->contains(test->fTarget)); 86 SkActive::SkState& testState = fState[oldCount + index]; 87 for (int inner = 0; inner < oldCount; inner++) { 88 SkAnimateBase* oldGuard = fAnimators[inner]; 89 SkActive::SkState& oldState = fState[inner]; 90 if (oldGuard->fTarget == test->fTarget && oldGuard->fFieldInfo == test->fFieldInfo && 91 testState.fBegin == oldState.fBegin) { 92 delete fInterpolators[inner]; 93 fInterpolators.remove(inner); 94 fAnimators.remove(inner); 95 testState.fSave = oldState.fSave; 96 if (oldState.fUnpostedEndEvent) { 97 // SkDEBUGF(("%8x %8x active append: post on end\n", this, oldGuard)); 98 fMaker.postOnEnd(oldGuard, oldState.fBegin + oldState.fDuration); 99 } 100 fState.remove(inner); 101 if (fApply.restore) { 102 int saveIndex = fSaveRestore.count(); 103 SkASSERT(fSaveInterpolators.count() == saveIndex); 104 saveIndex += inner; 105 do { 106 saveIndex -= oldCount; 107 delete[] fSaveRestore[saveIndex]; 108 fSaveRestore.remove(saveIndex); 109 delete[] fSaveInterpolators[saveIndex]; 110 fSaveInterpolators.remove(saveIndex); 111 } while (saveIndex > 0); 112 } 113 oldCount--; 114 break; 115 } 116 } 117 } 118 // total = oldCount + newCount; 119 // for (index = oldCount; index < total; index++) 120 // fState[index].bumpSave(); 121 SkASSERT(fInterpolators.count() == fAnimators.count()); 122 } 123 124 void SkActive::appendSave(int oldCount) { 125 SkASSERT(fDrawMax == 0); // if true, we can optimize below quite a bit 126 int newCount = fAnimators.count(); 127 int saveIndex = fSaveRestore.count(); 128 SkASSERT(fSaveInterpolators.count() == saveIndex); 129 int records = saveIndex / oldCount; 130 int newTotal = records * newCount; 131 fSaveRestore.setCount(newTotal); 132 do { 133 saveIndex -= oldCount; 134 newTotal -= newCount; 135 SkASSERT(saveIndex >= 0); 136 SkASSERT(newTotal >= 0); 137 memmove(&fSaveRestore[newTotal], &fSaveRestore[saveIndex], oldCount); 138 memset(&fSaveRestore[newTotal + oldCount], 0, 139 sizeof(fSaveRestore[0]) * (newCount - oldCount)); 140 memmove(&fSaveInterpolators[newTotal], 141 &fSaveInterpolators[saveIndex], oldCount); 142 memset(&fSaveInterpolators[newTotal + oldCount], 0, 143 sizeof(fSaveRestore[0]) * (newCount - oldCount)); 144 } while (saveIndex > 0); 145 SkASSERT(newTotal == 0); 146 } 147 148 void SkActive::calcDurations(int index) 149 { 150 SkAnimateBase* animate = fAnimators[index]; 151 SkMSec duration = animate->dur; 152 SkState& state = fState[index]; 153 if (state.fMode == SkApply::kMode_immediate || state.fMode == SkApply::kMode_create) 154 duration = state.fSteps ? state.fSteps * SK_MSec1 : 1; 155 // else if (state.fMode == SkApply::kMode_hold) { 156 // int entries = animate->entries(); 157 // SkScriptValue value; 158 // value.fOperand = animate->getValues()[entries - 1]; 159 // value.fType = animate->getValuesType(); 160 // bool result = SkScriptEngine::ConvertTo(NULL, SkType_Int, &value); 161 // SkASSERT(result); 162 // duration = value.fOperand.fS32 * SK_MSec1; 163 // } 164 state.fDuration = duration; 165 SkMSec maxTime = state.fBegin + duration; 166 if (fMaxTime < maxTime) 167 fMaxTime = maxTime; 168 } 169 170 void SkActive::create(SkDrawable* drawable, SkMSec time) { 171 fApply.fLastTime = time; 172 fApply.refresh(fMaker); 173 for (int index = 0; index < fAnimators.count(); index++) { 174 SkAnimateBase* animate = fAnimators[index]; 175 SkOperandInterpolator& interpolator = *fInterpolators[index]; 176 int count = animate->components(); 177 if (animate->formula.size() > 0) { 178 SkTDOperandArray values; 179 values.setCount(count); 180 bool success = animate->fFieldInfo->setValue(fMaker, &values, 0, 0, NULL, 181 animate->getValuesType(), animate->formula); 182 SkASSERT(success); 183 fApply.applyValues(index, values.begin(), count, animate->getValuesType(), time); 184 } else { 185 SkAutoSTMalloc<16, SkOperand> values(count); 186 interpolator.timeToValues(time, values.get()); 187 fApply.applyValues(index, values.get(), count, animate->getValuesType(), time); 188 } 189 } 190 drawable->enable(fMaker); 191 SkASSERT(fAnimators.count() == fInterpolators.count()); 192 } 193 194 bool SkActive::immediate(bool enable) { 195 SkMSec time = 0; 196 bool result = false; 197 SkDrawable* drawable = fApply.scope; 198 SkMSec final = fMaxTime; 199 do { 200 bool applied = fAnimators.count() == 0; 201 fApply.fLastTime = time; 202 fApply.refresh(fMaker); 203 for (int index = 0; index < fAnimators.count(); index++) { 204 SkAnimateBase* animate = fAnimators[index]; 205 SkState& state = fState[index]; 206 if (state.fMode != SkApply::kMode_immediate) 207 continue; 208 if (state.fBegin > time) 209 continue; 210 if (time > state.fBegin + state.fDuration) 211 continue; 212 applied = true; 213 SkOperandInterpolator& interpolator = *fInterpolators[index]; 214 int count = animate->components(); 215 if (animate->formula.size() > 0) { 216 SkTDOperandArray values; 217 values.setCount(count); 218 bool success = animate->fFieldInfo->setValue(fMaker, &values, 0, 0, NULL, 219 animate->getValuesType(), animate->formula); 220 SkASSERT(success); 221 fApply.applyValues(index, values.begin(), count, animate->getValuesType(), time); 222 } else { 223 SkAutoSTMalloc<16, SkOperand> values(count); 224 interpolator.timeToValues(time, values.get()); 225 fApply.applyValues(index, values.get(), count, animate->getValuesType(), time); 226 } 227 } 228 if (enable) 229 drawable->enable(fMaker); 230 else if (applied) 231 result |= drawable->draw(fMaker); 232 time += SK_MSec1; 233 } while (time <= final); 234 return result; 235 } 236 237 void SkActive::fixInterpolator(SkBool save) { 238 int animators = fAnimators.count(); 239 for (int index = 0; index < animators; index++) { 240 SkAnimateBase* animate = fAnimators[index]; 241 if (save) { // saved slots increased 242 animate->refresh(fMaker); 243 SkOperand* values = animate->getValues(); 244 setInterpolator(index, values); 245 saveInterpolatorValues(index); 246 } else 247 restoreInterpolatorValues(index); 248 } 249 } 250 251 SkMSec SkActive::getTime(SkMSec inTime, int animatorIndex) { 252 fState[animatorIndex].fTicks = inTime; 253 return inTime - fState[animatorIndex].fStartTime; 254 } 255 256 bool SkActive::initializeSave() { 257 int animators = fAnimators.count(); 258 int activeTotal = fDrawIndex + animators; 259 int oldCount = fSaveRestore.count(); 260 if (oldCount < activeTotal) { 261 fSaveRestore.setCount(activeTotal); 262 memset(&fSaveRestore[oldCount], 0, sizeof(fSaveRestore[0]) * (activeTotal - oldCount)); 263 SkASSERT(fSaveInterpolators.count() == oldCount); 264 fSaveInterpolators.setCount(activeTotal); 265 memset(&fSaveInterpolators[oldCount], 0, 266 sizeof(fSaveInterpolators[0]) * (activeTotal - oldCount)); 267 return true; 268 } 269 return false; 270 } 271 272 void SkActive::initState(SkApply* apply, int offset) { 273 int count = fState.count(); 274 for (int index = offset; index < count; index++) { 275 SkState& state = fState[index]; 276 SkAnimateBase* animate = fAnimators[index]; 277 #if 0 // def SK_DEBUG 278 if (animate->fHasEndEvent) 279 SkDebugf("%8x %8x active initState:\n", this, animate); 280 #endif 281 SkOperand* from = animate->getValues(); 282 state.fStartTime = state.fBegin = apply->begin + animate->begin; 283 state.fMode = apply->mode; 284 state.fTransition = apply->transition; 285 #if 0 286 state.fPickup = (SkBool8) apply->pickup; 287 #endif 288 state.fRestore = (SkBool8) apply->restore; 289 state.fSave = apply->begin; 290 state.fStarted = false; 291 state.fSteps = apply->steps; 292 state.fTicks = 0; 293 state.fUnpostedEndEvent = (SkBool8) animate->fHasEndEvent; 294 calcDurations(index); 295 setInterpolator(index, from); 296 } 297 if (count == 0 && (apply->mode == SkApply::kMode_immediate || apply->mode == SkApply::kMode_create)) 298 fMaxTime = apply->begin + apply->steps * SK_MSec1; 299 } 300 301 void SkActive::pickUp(SkActive* existing) { 302 SkTDOperandArray existingValues; 303 for (int index = 0; index < fAnimators.count(); index++) { 304 SkAnimateBase* animate = fAnimators[index]; 305 SkASSERT(animate->getValuesType() == SkType_Float); 306 int components = animate->components(); 307 SkOperand* from = animate->getValues(); 308 SkOperand* to = &from[animate->components()]; 309 existingValues.setCount(components); 310 existing->fInterpolators[index]->timeToValues( 311 existing->fState[index].fTicks - existing->fState[index].fStartTime, existingValues.begin()); 312 SkScalar originalSum = 0; 313 SkScalar workingSum = 0; 314 for (int cIndex = 0; cIndex < components; cIndex++) { 315 SkScalar delta = to[cIndex].fScalar - from[cIndex].fScalar; 316 originalSum += SkScalarMul(delta, delta); 317 delta = to[cIndex].fScalar - existingValues[cIndex].fScalar; 318 workingSum += SkScalarMul(delta, delta); 319 } 320 if (workingSum < originalSum) { 321 SkScalar originalDistance = SkScalarSqrt(originalSum); 322 SkScalar workingDistance = SkScalarSqrt(workingSum); 323 existing->fState[index].fDuration = (SkMSec) SkScalarMulDiv(fState[index].fDuration, 324 workingDistance, originalDistance); 325 } 326 fInterpolators[index]->reset(components, 2, SkType_Float); 327 fInterpolators[index]->setKeyFrame(0, 0, existingValues.begin(), animate->blend[0]); 328 fInterpolators[index]->setKeyFrame(1, fState[index].fDuration, to, animate->blend[0]); 329 } 330 } 331 332 void SkActive::resetInterpolators() { 333 int animators = fAnimators.count(); 334 for (int index = 0; index < animators; index++) { 335 SkAnimateBase* animate = fAnimators[index]; 336 SkOperand* values = animate->getValues(); 337 setInterpolator(index, values); 338 } 339 } 340 341 void SkActive::resetState() { 342 fDrawIndex = 0; 343 int count = fState.count(); 344 for (int index = 0; index < count; index++) { 345 SkState& state = fState[index]; 346 SkAnimateBase* animate = fAnimators[index]; 347 #if 0 // def SK_DEBUG 348 if (animate->fHasEndEvent) 349 SkDebugf("%8x %8x active resetState: has end event\n", this, animate); 350 #endif 351 state.fStartTime = state.fBegin = fApply.begin + animate->begin; 352 state.fStarted = false; 353 state.fTicks = 0; 354 } 355 } 356 357 void SkActive::restoreInterpolatorValues(int index) { 358 SkOperandInterpolator& interpolator = *fInterpolators[index]; 359 index += fDrawIndex ; 360 int count = interpolator.getValuesCount(); 361 memcpy(interpolator.getValues(), fSaveInterpolators[index], count * sizeof(SkOperand)); 362 } 363 364 void SkActive::saveInterpolatorValues(int index) { 365 SkOperandInterpolator& interpolator = *fInterpolators[index]; 366 index += fDrawIndex ; 367 int count = interpolator.getValuesCount(); 368 SkOperand* cache = new SkOperand[count]; // this should use sk_malloc/sk_free since SkOperand does not have a constructor/destructor 369 fSaveInterpolators[index] = cache; 370 memcpy(cache, interpolator.getValues(), count * sizeof(SkOperand)); 371 } 372 373 void SkActive::setInterpolator(int index, SkOperand* from) { 374 if (from == NULL) // legitimate for set string 375 return; 376 SkAnimateBase* animate = fAnimators[index]; 377 int entries = animate->entries(); 378 SkASSERT(entries > 0); 379 SkMSec duration = fState[index].fDuration; 380 int components = animate->components(); 381 SkOperandInterpolator& interpolator = *fInterpolators[index]; 382 interpolator.reset(components, entries == 1 ? 2 : entries, animate->getValuesType()); 383 interpolator.setMirror(SkToBool(animate->fMirror)); 384 interpolator.setReset(SkToBool(animate->fReset)); 385 interpolator.setRepeatCount(animate->repeat); 386 if (entries == 1) { 387 interpolator.setKeyFrame(0, 0, from, animate->blend[0]); 388 interpolator.setKeyFrame(1, duration, from, animate->blend[0]); 389 return; 390 } 391 for (int entry = 0; entry < entries; entry++) { 392 int blendIndex = SkMin32(animate->blend.count() - 1, entry); 393 interpolator.setKeyFrame(entry, entry * duration / (entries - 1), from, 394 animate->blend[blendIndex]); 395 from += components; 396 } 397 } 398 399 void SkActive::setSteps(int steps) { 400 int count = fState.count(); 401 fMaxTime = 0; 402 for (int index = 0; index < count; index++) { 403 SkState& state = fState[index]; 404 state.fSteps = steps; 405 calcDurations(index); 406 } 407 } 408 409 void SkActive::start() { 410 int count = fState.count(); 411 SkASSERT(count == fAnimators.count()); 412 SkASSERT(count == fInterpolators.count()); 413 for (int index = 0; index < count; index++) { 414 SkState& state = fState[index]; 415 if (state.fStarted) 416 continue; 417 state.fStarted = true; 418 #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING 419 SkString debugOut; 420 SkMSec time = fMaker.getAppTime(); 421 debugOut.appendS32(time - fMaker.fDebugTimeBase); 422 debugOut.append(" active start adjust delay id="); 423 debugOut.append(fApply._id); 424 debugOut.append("; "); 425 debugOut.append(fAnimators[index]->_id); 426 debugOut.append("="); 427 debugOut.appendS32(fAnimators[index]->fStart - fMaker.fDebugTimeBase); 428 debugOut.append(":"); 429 debugOut.appendS32(state.fStartTime); 430 #endif 431 if (state.fStartTime > 0) { 432 SkMSec future = fAnimators[index]->fStart + state.fStartTime; 433 if (future > fMaker.fEnableTime) 434 fMaker.notifyInvalTime(future); 435 else 436 fMaker.notifyInval(); 437 #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING 438 debugOut.append(":"); 439 debugOut.appendS32(future - fMaker.fDebugTimeBase); 440 #endif 441 } 442 if (state.fStartTime >= fMaker.fAdjustedStart) { 443 state.fStartTime -= fMaker.fAdjustedStart; 444 #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING 445 debugOut.append(" (less adjust = "); 446 debugOut.appendS32(fMaker.fAdjustedStart); 447 #endif 448 } 449 state.fStartTime += fAnimators[index]->fStart; 450 #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING 451 debugOut.append(") new start = "); 452 debugOut.appendS32(state.fStartTime - fMaker.fDebugTimeBase); 453 SkDebugf("%s\n", debugOut.c_str()); 454 // SkASSERT((int) (state.fStartTime - fMaker.fDebugTimeBase) >= 0); 455 #endif 456 } 457 SkASSERT(fAnimators.count() == fInterpolators.count()); 458 } 459 460 #ifdef SK_DEBUG 461 void SkActive::validate() { 462 int count = fState.count(); 463 SkASSERT(count == fAnimators.count()); 464 SkASSERT(count == fInterpolators.count()); 465 for (int index = 0; index < count; index++) { 466 SkASSERT(fAnimators[index]); 467 SkASSERT(fInterpolators[index]); 468 // SkAnimateBase* test = fAnimators[index]; 469 // SkASSERT(fApply.scope == test->fTarget || fApply.scope->contains(test->fTarget)); 470 } 471 } 472 #endif 473 474 // think about this 475 // there should only be one animate object, not two, to go up and down 476 // when the apply with reverse came into play, it needs to pick up the value 477 // of the existing animate object then remove it from the list 478 // the code below should only be bumping fSave, and there shouldn't be anything 479 // it needs to be synchronized with 480 481 // however, if there are two animates both operating on the same field, then 482 // when one replaces the other, it may make sense to pick up the old value as a starting 483 // value for the new one somehow. 484 485 //void SkActive::SkState::bumpSave() { 486 // if (fMode != SkApply::kMode_hold) 487 // return; 488 // if (fTransition == SkApply::kTransition_reverse) { 489 // if (fSave > 0) 490 // fSave -= SK_MSec1; 491 // } else if (fSave < fDuration) 492 // fSave += SK_MSec1; 493 //} 494 495 SkMSec SkActive::SkState::getRelativeTime(SkMSec time) { 496 SkMSec result = time; 497 // if (fMode == SkApply::kMode_hold) 498 // result = fSave; 499 // else 500 if (fTransition == SkApply::kTransition_reverse) { 501 if (SkMSec_LT(fDuration, time)) 502 result = 0; 503 else 504 result = fDuration - time; 505 } 506 return result; 507 } 508 509 510
